body,html
    line-height:1
    font-weight: 200
    font-family: 'PingFang SC','STHeitiSC-Light','Helveetica-Light',atial,sans-serif
.clearfix
    display:inline-block
    &:after
        content: ''
        display: block
        clear:both
        height:0
        line-height:0
        visibility: hidden
.spacing
    height: 12px
    width: 100%
    background: #f5f5f5
.g-flex-center
    display flex
    justify-content center
    align-items center
@media(-webkit-min-device-pixel-ratio:1.5),(min-device-pixel-ratio:1.5)
    .border-1px
        &::after
            -webkit-transform:scaleY(0.7)
            transform:scaleY(0.7)
@media(-webkit-min-device-pixel-ratio:2),(min-device-pixel-ratio:2)
    .border-1px
        &::after
            -webkit-transform:scaleY(0.5)
            transform:scaleY(0.5)
